<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String area=request.getParameter("area");
if(area.equals("上海")){
	response.sendRedirect("show.jsp?a=sh");
}
else{
	response.sendRedirect("welcome.jsp");
}
%>

</body>
</html>